Metallic receptacle and closure therefor



v. E. CORNELL METALLIC RECEPTACLE AND CLOSURE THEREFOR 2 Filed Sept. 26,1931 MWQ WI I H' Patented May' 30, 1933' I UNITED STATES PATENfIl {OFFICVERNON E. CORNELL, OF CLEVELAND, OHIO, .ASSIGNOR T0 CORNELL SECURITIESCORPORATION, OF CLEVELAND, OHIO, A CORPORATION OF DELAWARE METALLICRECEIPTACLE AN D CLOSURE THEREFOR Application filed September 26, 1931.Serial No. 565,217.

This invention is an improvement in closure devices for use on steeldrums, barrels, of other metallic containers and relates moreparticularly to such devices which may be quickly applied to thecontainers to clamp and seal the head or closure tightly in position.

One of the objects of the invention'resides in forming a clamping ringof the type described, which, in applying it to clamp and seal a head inplace on a container, will snap into clamping position.

A further object of the invention is to uniformly distribute theclamping forces about the periphery of the ring and container head.

Another object is to provide a simple means for clamping heads onmetallic receptacles, such as drums or barrels, for storing and shippingliquids such as oil, in the form.

of a split, channelled, contractible clamping ring for drawing theflange of the cover tightly down against the bead of the receptacle toform a liquid-tight seal between the cover and receptacle.

A still further object is to so form the clamping ring that partof theperiphery thereof will be formed about a given center, while anotherportion of the periphery is formed about another center whereby theinterlockingends of the ring may be snapped together more readily toclamp the ring in place on a receptacle and whereby the closed ring willbe prevented from springing open accidentally under shock.

Other objects and advantages will become more apparent from thefollowing description of my invention, reference being made to theaccompanying drawing in which like reference, characters are employed todesignate like parts throughout the same.

In the drawing Figure 1 is a side elevation of a metallic receptacleshowing my invention applied in use.

Figure 2 is a plan view ofthe clamping and sealing ring and illustratesthe method of forming different portions of the ring periphery aboutdifferent centers.

Figure 3 is a fragmentary section of a receptacle showing the clampingring in place andtightly clamping and sealing the cover on thereceptacle.

Figure 4 is an enlarged fragmentary plan view of one end of the clampingring.

Figure 5 is an enlarged fragmentary plan view of the other end of theclamping ring.

Figure 6 is a section taken online 66 of.

scribed and claimed a clamping device for the heads of metallicreceptacles, similar in many respects to the present invention. However,here are important, novel differences which will appear from thefollowing description of an embodiment of the present invention. v

In the drawing I have illustrated .a'n emf bodiment of my inventionapplied to a metallic receptacle 1 such as a drum, barrel or the like.The receptacle is usually-provided at its openend with a bead rolledoutwardly as at 2. A cover 3, having an outwardly extending annular,concavo convex flange 4 fits into the open end of the receptacle asshown, the flange 4 being supported by the head 2 of the receptacle. Anannular acking 5 may be interposed between the ange 4 and the head 2 toprovide a cushion seat for the flange and to further insure a liquidtight substantially C-shaped. One end of the ring is slightly enlargedfor a portion of its length as indicated at 7 for receiving the otherend of the ring 8 in telescopic relation when the ring is contractedabout the end of the receptacle for clamping the cover thereon.

l have provided means for securing the ends of the split ring togetherin interlocked relation when the ring is contracted about or moreprojections or fingers 9 which are 9 inclusive of the drawing, it beingnoted preferably formed integrally with the ring material-and extendoutwardly of the ring end 8 into the path of projections or-fingers 10formed in the'enlarg'ed ring end 7. The respective projections9 and 10are arranged in aligmnent so that by telescoping the ends 7 and 8 of thering the downwardly projecting fingers-10 will override the upwardlyextending projections 9 and snap-downward to be received in the openings11 formed in the end 8 of the ring by .pressing the projections 9outwardly of the ring periphery.

The respective fingers 9 and 10 are preferably formed by stamping thesame in the ring material and pressing them outwardly and inwardlyrespectively in substantially parallel planes to each other. Theformation of these fingers may be better understood by referring moreparticularly to Figures 4 to that where a plurality of such fingers isemployed as shown, an opening is provided in the ring material betweeneach adjacent finger for receiving the respective fingers of the otherend of the ring when the two ends are telescoped one within the other-inring contracted position. The fingers 9 and 10 formed in each end of thering extend preferably at an acute angle away from the end walls of therespective ends of the ring.

It will be noted that the enlarged end 7 of the ring is upset along itsforward edge as at 12 to permit this end of the ring to more easilyoverride the successive upwardly extending projections 9 formed in theend 8 of the ring as the two ends are brought to ether in telescopicrelation. 1

t will be noted that portions of the ring material in the end 7 are cutaway as at 13 to receive the upwardly extending projections 9 when theends are telescoped together, thereby permitting the telescoped endstolie one upon the other without disturbing the effective seal at thesepoints.

In Figure 2 Ihave illustrated one of the important features of thisinvention which consists essentially in forming one portion of theperiphery of the ring about the center 14 along the radius 15, whileanother portion'of the ring, which according to the present invention ispreferably defined as including the enlarged end 7, is formed about thecenter 16 and the radius 17. In this manner the portion of the ringincluding the enlarged end 7 is toed inwardly so that if an imaginaryline were continued fromthe extreme end of the portion 7 about thecenter 16 in a counter-clockwise direction, the resulting imaginary perihery would lie within the actual periphery o the ring formed about thecenter 14. By forming the ring in this manner additional snap'l isimparted to, the telescoping ends7 of the ring when this end is appliedover the end 8 in the manner here,- tofore described. The direction ofsnap-is downward with respect to Figure 2 and adequately insures aproper and efiicient intor-locking of the ends and, I have found,

containers without danger of leakage between i I the cover and the mouthof the container due to the high degree ofseal provided by the use of myinvention.

It will be noted that by my invention I have provided a very simple andinexpensive clamping device for clamping the heads or covers on metallicreceptacles which, when contracted about the cover and the bead of thereceptacle, tightly draws the cover and bead together to form a liquidtight seal therebetween.

Various changes in the details of construction and arrangement of partsmay be made without departing from the spirit of my invention or thescope of the appended claims.

I claim: 1. In a clamping device for a metallic receptacle having anannular bead rolled about its open end and a cover for the receptaclehaving a marginal outwardly extending flange for fitting over the bead,a split, contractible clamping ring engaging the bead and the coverflange and channelled to overlie and underlie the flange andbeadrespectively to drawthe same tightly together when the ring iscontracted, the respective ends ,of the ring telescoping one within theother when the ring is contracted, and cooperating means formedintegrally with the ring ends for securing the ends of the ring togetherin telescopic interlocked relation when the ring:

is contracted, a portion of the ring including one of the ends thereofbeing formed about a center, offset "from the center about which theremainder of the ring is formed to impart a substantially radial lockingpressure in-'.

wardly of the ring when the ends of the ring are telescoped. v

2. A clamping device for clamping covers ,on metallic receptacles, saiddevice including a split, contractible rin the ends of which arearranged to interloc one" with the other when the ring is contractedabout a receptacle and cover therefor, different portions of the ringbeing developed from offset centers to impart a substantially radiallocking pressure inwardly of the ring when the ring 1s contracted.

3. A clamping deyice for clamping covers on metallic receptacles, saiddevice includin a split, contractible rin the ends of whic are arrangedto interloc one with the other when the ring is contracted about areceptacle and cover therefor, the respective interlocking portions ofthe ring being formed on radii operating on difierent centers to im arta substantially radial pressure inwar 1y of the ring when the ring iscontracted.

In testimony whereof, I hereunto afix my signature.

VERNON E. CORNELL.

